package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.annotation.Log;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class SetmealServiceImpl implements SetmealService {

    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;
    /**
     * 新增套餐
     * @param setmealDTO
     * @return
     */
    @Override
    @Transactional
    @Log
    public void insert(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
       /* setmeal.setUpdateTime(LocalDateTime.now());
        setmeal.setCreateTime(LocalDateTime.now());
        setmeal.setUpdateUser(BaseContext.getCurrentId());
        setmeal.setCreateUser(BaseContext.getCurrentId());*/
        setmealMapper.insert(setmeal);

        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        if (setmealDishes != null && setmealDishes.size() > 0) {
            for (SetmealDish setmealDish : setmealDishes) {
                setmealDish.setSetmealId(setmeal.getId());
            }
            setmealDishMapper.insertBatch(setmealDishes);
        }
    }

    /**
     * 套餐分页查询
     * @param setmealPageQueryDTO
     * @return
     */
    @Override
    @Log
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(
                setmealPageQueryDTO.getPage(),
                setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> page = setmealMapper.pageQuery(setmealPageQueryDTO);
        return new PageResult(
                page.getTotal(),
                page.getResult());
    }

    /**
     * 根据id删除套餐
     * @param ids
     */
    @Override
    @Transactional
    @Log
    public void deleteBatch(List<Long> ids) {
        for (Long id : ids) {
            Setmeal setmeal = setmealMapper.getById(id);
            if (setmeal.getStatus() == StatusConstant.ENABLE) {
                throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
            }
        }

        for (Long id : ids) {
            setmealMapper.deleteById(id);
            setmealDishMapper.deleteBySetmealId(id);
        }
    }

    /**
     * 根据id查询套餐
     * @param id
     * @return
     */
    @Override
    @Log
    public SetmealVO getByIdWithDish(Long id) {
        Setmeal setmeal= setmealMapper.getById(id);
        List<SetmealDish> setmealDishes = setmealDishMapper.getBySetmealId(id);
        SetmealVO setmealVO = new SetmealVO();
        BeanUtils.copyProperties(setmeal, setmealVO);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    /**
     * 修改套餐
     * @param setmealDTO
     */
    @Override
    @Log
    public void update(SetmealDTO setmealDTO) {
        setmealDishMapper.deleteBySetmealId(setmealDTO.getId());

        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        for (SetmealDish setmealDish : setmealDishes) {
            setmealDish.setSetmealId(setmealDTO.getId());
        }
        if (setmealDishes != null && setmealDishes.size() > 0) {
            setmealDishMapper.insertBatch(setmealDishes);
        }

        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        //setmeal.setUpdateTime(LocalDateTime.now());
        //setmeal.setUpdateUser(BaseContext.getCurrentId());
        setmealMapper.update(setmeal);
    }

    /**
     * 修改套餐启用禁用
     * @param status
     * @param id
     */
    @Override
    @Log
    public void startOrStop(Integer status, Long id) {
        List<SetmealDish> setmealDishes = setmealDishMapper.getBySetmealId(id);
        for (SetmealDish setmealDish : setmealDishes) {
            Dish dish = dishMapper.getById(setmealDish.getDishId());
            if (dish.getStatus() == StatusConstant.DISABLE) {
                throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ENABLE_FAILED);
            }
        }
        setmealMapper.update(
                Setmeal.builder()
                        .id(id)
                        .status(status)
                        //.updateTime(LocalDateTime.now())
                        //.updateUser(BaseContext.getCurrentId())
                        .build()
        );
    }

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    @Override
    @Log
    public List<Setmeal> list(Setmeal setmeal) {
        return setmealMapper.list(setmeal);
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    @Override
    @Log
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }
}
